3. what is deep focus, and when is it a good choice for a scene?

Deep focus keeps both objects, or characters, close up and far away from the camera in focus. It guides the viewers attention to something specific in the shot and is used mainly in close-up shots, so that your shots look better and more professional.

Explanation:

answer; the masks were used in rituals and celebrations, some tribes wore animal masks as a way of thinking the animals for their gift of food;